Merge pull request #13 from nordic-olha/master

Changes for MySQL compatibility
Added privatemessages import, supporting easydiscuss models
Added password hash string formatting for Joomla password hashes
Remove OpenID reference
Add custom colors and fonts to lib_style
Update style.less and .css
Use cms-css in askbot
Fix search bar UI
Make add button fit next to tag input
Added delete_dead_threads and delete_unanswered_questions as management commands
CSS change for CMS base template restructuring
Merge remote-tracking branch 'upstream/master'

Conflicts:
	askbot/media/style/style.css